Planaria feed by

A) attaching to a food item with a sucker and extracting fluids.
B) tearing and sucking food particles via a muscular pharynx.
C) externally digesting food items and then ingesting the liquified food.
D) diffusing in nutrients from the environment through its thin epidermal surface.
E) filtering the water.

Planaria

A genus of flatworms known for their remarkable ability to regenerate, commonly studied in research on regeneration and stem cells.

Muscular Pharynx

The muscular pharynx is a part of the digestive and respiratory systems, playing a crucial role in swallowing and the passage of air and food.

Epidermal Surface

The epidermal surface is the outermost layer of the skin or the outer surface layer of plants, protecting against environmental damage and water loss.